package oj;

import java.math.BigDecimal;
import java.util.Scanner;

public class Day26S {
    public static void main(String[] args) {
        Scanner sc=new Scanner(System.in);
        while (sc.hasNext()){
            BigDecimal n=sc.nextBigDecimal();
            BigDecimal r=sc.nextBigDecimal();
            BigDecimal c= new BigDecimal(6.28).multiply(r);
            System.out.println(c.compareTo(n)>0?"Yes":"No");
        }
    }
}
